Vulnerability in Canonical Snapd
CVE-2019-11503
snap-confine as included in snapd before 2.39 did not guard against symlink races when performing the chdir() to the current working directory of the calling user, aka a "cwd restore permission bypass."
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.024 (83.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2019/04/18/4 (Exploit, Patch, Mailing List, Third Party Advisory)
- github.com/snapcore/snapd/pull/6642 (Third Party Advisory)
- www.openwall.com/lists/oss-security/2019/04/25/7 (mailing-list, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2019-11503?
- CVE-2019-11503 is a high-severity vulnerability in Canonical Snapd, classified under Improper Link Resolution Before File Access. CVSS score: 7.5/10. Published 2019-04-24.
- How severe is CVE-2019-11503?
- High severity. CVSS v3 base score is 7.5 out of 10.